I am starting to get confident.
Randy Dewey, what did you use to scrape with?
Did you use any cleaning agents or solvents?
Did you disassemble the window frames prior to painting
them and what paint
Unfortunately, the previous owner loaded up heavy layers of grey silicone around the frame, mostly on top. I may end up with a chisel or jack hammer in my hand.
In trying to remove some other areas of silicone from the trailer, I never have completed any one area. It is a real bear. I mean hours of trying and fingernail/tip weardown.
Raya L., I think your observation about the clamping type frame is noteable.
The main problem I see is that the two half shells are not perfectly aligned and this obviously is right at the center of the frame. Until I have the window out, I won't know how flexible the mounting edge is, but the offset of the two halves is probably in need of fiberglass or filler to even it out. If that is the case, I have Formula 27 which I have had good luck with before. Although, I have only used it on stationary objects in the past.
If I need fiberglass work, it sounds like you have some experience in that area as well. We'll see when I get it apart.
I will probably end up using extra layer(s) of the tape on the depressed side and tapering to fill any gap as suggested to me earlier, if I can get away with it.
Thank you again to all for your input.